Apparatus for casting and shearing solidified sprues

ABSTRACT

Metal is cast onto a body within a die cavity having preformed areas of relatively small size into which metal may be deposited. The metal, which is exterior of the die cavity after the metal within the cavity has solidified, is removed by shearing means.

United States Patent [72] inventors Kendall Clark Poughkeepsie; William A. Klein, Wappingers Falls, both of N.Y. [21] Appl. No. 860,936 [22] Filed Sept. 25, 1969 [45] Patented Dec. 14, 1971 [73] Assignee international Business Machines Corporation Armonlt, N.Y.

[54] APPARATUS FOR CASTING AND SHEARING SOLlDlFlED SPRUES 6 Claims, 63 Drawing Figs.

[52] U.S.Cl 164/264, 164/70 [51] Int. Cl 822d 31/00 [50] Field 01 Search 164/262, 264, 265, 69, 70, 344, 347; 18/5 130,5 BR, 5 BS, 2 RC, 2 RM, 2 RP, 304; 336/200 [56] References Cited UNITED STATES PATENTS 1,197,357 9/1916 Ellsworth 164/264 2,494,777 1/1950 Patterson et a1. 164/262 X 2,520,263 8/1950 Vinal 164/264 X 3,095,623 7/1963 Kerns et a1 164/264 3,256,572 6/1966 Fisher 164/265 3,477,051 11/1969 Clark et a1. 336/200 X 3,483,495 12/1969 Clark et a1. 336/200X 3,483,497 12/1969 Clark et a1. 336/200 X 3,486,149 12/1969 Klein 336/200 X FOREIGN PATENTS 223,361 11/1959 Australia 164/262 625,185 6/1949 Great Britain 164/262 Primary Examiner-Robert D. Baldwin Assistant Examiner.1ohn E. Roethel Auorneys-Hanifin and Jancin and Franlk C. Leach, Jr.

ABSTRACT: Metal is cast onto a body within a die cavity having preformed areas of relatively small size into which metal may be deposited The metal, which is exterior of the die cavity after the metal within the cavity has solidified, is removed by shearing means.

Patented Dec. 14, 1971 I 3,627,023

19 Sheets-Sheet 1 26 v N F|G.9

INVEITORS KENDALL CLARK WHJJAM ALLEN KLHN ATTORNEY Patented Dec. 14, 1971 19 Sheets-Sheet 2 19 Sheets-Sheet 5 FIG 13 Patented Dec. 14, 1971 VIII/III Patgnted Dec. 14, 1971 3,627,023

19 Sheets-Sheet 4 Patented Dec. 14, 1971 3,627,023

19 Shee ts-Sheet s Patented Dec. 14, 1971 19 Sheets-Sheet 6 -FIG.24

FIG.3O

FIG. 2'? H628 F|G.29

FIG.3I

Patented Dec. 14, 1971 3,627,023

19 Sheets-$heet 8 FIG. 42

Patefited Dec. 14, 1971 19 Sheets-Sheet 9 Patented Dec. 14, 1971 3,627,023

19 Sheets-Sheet 10 FIG. 46

Patented Dec. 14, 1971 19 Sheets-Sheet 11 Patented Dec. 14, 1971 19 Sheets-Sheet 12 Patented Dec. 14, 1971 19 Sheets-Sheet 13 Patented Dec. 14, 1971 19 Sheets-Sheet 14 Patented Dec. 14, 1971 19 Sheets-Sheet 15 19 Sheets-Sheet 16 can as .Q E K Im mama llll ll IIIIIIIIIII I I I l wsazz .7 I I I HHI I M I/ III. 2 2 39 I I :37? 53 33 25 02 SE4 96 #3311 .52 96 2: :87? 2.5 96 2: 2.5 :5 93 2: 2: I E 5 5 353 6 mi Him 295m: m5 551 moBmB m5 5% fim2www m5 as: 5% 353 25 E55 NI I I II I I I I I I II I.I m ow oz hfiimmmdu m5 IIIIIIII IIII IIIIIIIIIVHIN I Wm V ZQZQE I I I I I I I I I I I I I II 5% fim2wmw MB III II II IIIIIIIII I [VII 52: MUPIIIIII I IIII I I I I I I IM t o Patented Dec. 14, 1971 mm wE Patented Dec. 14, 1971 3,627,023

19 Sheets-Sheet 17 FIG; 57

FIG. 59

Patented Dec. 14, 1971 3,627,013

19 Sheets-Sheet l8 Q a: g; g; gi oo oooo g, N (O I N on w :0 0000000000 N I. *E I l a I 00000009 05 FIG. 60

Zifi

FIG. 6i

' Patented Dec. 14, 1971 19 Sheets-Sheet 19 FIG. 62

FIG. 63 

1. An apparatus for forming a casting comprising: at least two mold members cooperating together to form a mold cavity in a closed position; means to effect relative movement between said mold members between opened and closed positions; a third mold member a. coextensive with selected one of said two mold members, b. adapted for movement between coextending spaced and contiguous relationship with a portion of said one member, and c. containing sprue channel portions in communicating relationship with said mold cavity; means for effecting relative movement to said third mold member between said spaced and contiguous positions relative to said one member; means to introduce liquid phase metal through said sprue channel portions into said cavities; and means to move said third mold member in sliding and contiguous relationship parallel with said one member for sheering solidified sprue portions.
 2. The apparatus of claim 1 including a fixed layer of resilient high-temperature plastic on the forming walls defining said mold cavity.
 3. forming a casting comprising: at least two mold members cooperating together to form a mold cavity in a closed position; means to effect relative movement to said mold members between opened and closed positions; a third mold member a. coextensive with a portion of a selected one of two mold members, b. adapted for movement between coextending spaced and contiguous relationship with a portion of said one member, and c. containing sprue channel portions in a communicating relationship with said mold cavity; a fourth mold member a. coextensive with a portion of said third mold member, b. adapted for movement between coextending spaced and contiguous relationship with a portion of said third mold member; and c. containing second sprue channel portions in register with and forming extensions of said first sprue portions of said third mold member; means to move said third and fourth mold members in sliding relationship relative to each other in said contiguous position, to position said first and second sprue channel portions out of register with each other after chilling of said metal; and means to introduce liquid phase metal through said second and first sprue channel portions into said mold cavity.
 4. The apparatus of claim 3 for forming a casting including a fixed layer of resilient high-temperature plastic on the forming walls of and defining said mold cavity.
 5. The apparatus of claim 3 including: means for effecting relative movement between said third mold member and said one mold member in sliding and contiguous relationship therebetween to change the relative position of said first sprue channel portions relative to said mold cavity after chilling of said metal to shear chilled sprue portions in said first sprue channel portionS from the metal coextending to said mold cavity.
 6. The apparatus of claim 5 for forming a casting including a fixed layer of resilient high-temperature plastic on the forming walls of and defining said mold cavity. 